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Theoretically Pure Water for Cooling

O

osrk

[H]ard|Gawd
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Here's a question that no one has probably asked. Has anyone ever submerged their rig in theoretically pure water (like the mineral oil idea but with water). Theoretically pure water has a conductivity of .054 micro seimens, I'm wondering if it would blow up in your face or actually work.
 
I'm sure this has been asked before, but the forum archives were wiped out a while ago, so it might not come up on recent searches.

Using 100% pure water would work under perfect conditions. But most people don't live in a clean room. There are hundreds of things that could be picked up by the water which would raise the conductivity level.

While in theory, it might work, the rig would be to costly to set up, and the maintenance of flushing out water would completely outweigh the benefits.

Some supercomputers do use inert fluids to cool the setup (http://en.wikipedia.org/wiki/Fluorinert) but again, cost and maintenance are major issues.

I don't even think 100% pure water would be good for use in a watercooling pipe system. It would be good for corrosion resistance, but there are additive fluids which can combat that. Disregarding corrosion, tap water, with it's impurities and ions, would probably be better as there are more things in the water which would displace heat better, but i'm not 100% on that.
 
Distilled water, while non-conductive, will kill your motherboard if poured on it. Why? Because all that dust on the motherboard makes the distilled water... magically become conductive to electricity.
 
I would think oil would be better as far as thermal conductivity anyway, no?
 
xdivenx said:
I would think oil would be better as far as thermal conductivity anyway, no?
Click to expand...

nope it's all about the specific heat, water has one of the highest at 4.19. Ya the only problem with the water would be it's ability to dissolve things and put them into solution, being as it doesn't have anything in it to begin with it would be that much more tenacious to dissolve polar compounds.
 
i'm gonna throw my computer into a barrel of oil and get back to you guys
 
osrk said:
Here's a question that no one has probably asked. Has anyone ever submerged their rig in theoretically pure water (like the mineral oil idea but with water). Theoretically pure water has a conductivity of .054 micro seimens, I'm wondering if it would blow up in your face or actually work.
Click to expand...

No. The water would erode the conductive elements of the submerged components and ionize, which would cause the computer to promptly fry itself.
 
when testing pure water for silica, the test (20 minutes) is (usually) done in
plastic beakers rather than glass so the glass doesn't raise the silica content
during the test. (in one lab at least)
 
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